About the Video Clip

This interview with Trevor Barr was recorded for the website From Wireless to Web, produced in 2005.

Trevor Barr is an author, professor and the Director of the Creative Industries Research & Applications Centre at the Queensland University of Technology. You can view his full biography at From Wireless to Web

The website is a selective history of broadcast media in Australia. Decade by decade, from radio and newsreels to TV and the internet, this history shows how the Australian broadcast media developed and shaped the way Australians see themselves.

Curriculum Focus

This Module can be used to achieve some of the outcomes of the NSW Stage 4 Technology (Mandatory) syllabus; specifically the following outcomes:
4.1.2: describes factors influencing design in the areas of study of Built Environments, Products, and Information and Communications.
4.4.1: explains the impact of innovation and emerging technologies on society and the environment.
4.6.2: identifies and explains ethical, social, environmental and sustainability considerations related to design projects.

This material is an extract. Teachers and students should consult the Board of Studies website for more information.

Background Information

Communicating between devices is nothing new. The telegraph offered coded messaging from the 1840s, and telephones were introduced in the 1870s. Computer-to-computer communication was anticipated in the 1940s, when the first computers were built, but back then only science fiction dreamed of girdling the Earth with a network of computer links. Thinkers of the 18th and 19th centuries had understood the importance of the press to society and had named it the Fourth Estate, after the other three Estates of the nobility, the clergy, and the middle class. Little did they know that the 21st century would see the emergence of an equally important Fifth Estate – the Internet and World Wide Web.

Australia Dials UpIn the early 1970s, two massive Unix-based mainframe computers in Melbourne and Wollongong – each the size of a room – exchanged files using a telephone dial-up line. Computer scientists had briefly established Australia’s first 'online’ connection. (Clarke Origins and Nature)

Soon after, computer science departments at the University of Sydney and University of Melbourne established the successful Australian Computer Science Network (ACSNet), which provided network connections between computer science departments at Australian universities from the mid-1970s. ACSNet used telephone lines to exchange files and transmit messages (emails) between computers. By the early 1980s a permanent Australian email connection was established to ARPANet in the United States.

Gradually, other university departments began to make use of ACSNet, starting with the engineers and other scientists. From this expanding network of university computers, the Australian Academic and Research Network (AARNet) was born in 1989.

Classroom Activities

Discuss and research the meanings of the following words: ARPANet, ACSNet, hacker, internet, modem, network, telecommunications, TCP/IP, topology, Unix, Usenet.

The website An Atlas of Cyberspaces documents a range of the historical maps of ARPANet, the Internet, Usenet and other computer networks, tracing how these pioneering networks grew and developed. As with any large-scale project, it is important to map network growth over time, especially if the functionality and complexity of the project increases significantly. Similarly, most school computer networks have grown in functionality and in size.

Arrange for your class to interview a staff member who was working at the school when computers were initially introduced into your school. From their answers develop a map of that network as well as listing the users and activities undertaken on that network.

Create a map of the current computer network at your school and list the users and activities undertaken by that network.

Compare and discuss the two maps.

The Internet has had a significant impact on our society.

List five activities that you use the Internet for.

Interview your grandparents or at least someone who was your age in the early 1970s. Ask them how they undertook similar activities back then.